USING LINE × TESTER METHOD AND HETEROTIC GROUPING TO SELECT HIGH YIELDING GENOTYPES OF BREAD WHEAT (Triticum aestivum L.)

İmren KUTLU; Zeynep SIREL

doi:https://doi.org/10.17557/tjfc.643546

Article Details

USING LINE × TESTER METHOD AND HETEROTIC GROUPING TO SELECT HIGH YIELDING GENOTYPES OF BREAD WHEAT (Triticum aestivum L.)

Authors:

İmren KUTLU | Zeynep SIREL

Publisher:

Society of Fields Crop Science

Journal:

Turkish Journal Of Field Crops 2019 Vol.24 Issue 2, pp.185-194

Document Type:

Article

Publication Date:

12/2019

Document Language:

English

Document ID (Org No.):

2000636087

Frequency:

Bi-Annual

pISSN:

1301-1111

DOI:

https://doi.org/10.17557/tjfc.643546

Abstract:

 


Studies on genetic gain, made by direct or indirect phenotypic selection, are needed regularly since they offer
valuable information for breeding programs. The purpose of this study to investigate the gene effects on the
yield-related traits of the F1 and F2 populations of bread wheat “line×tester” crosses; to identify suitable
parents and promising hybrids for development of high yielding varieties; to determine correlations between
genetic distances of the parents and heterosis with heterotic groups (HG) based on specific combining ability
(SCA). The combining abilities, heritability, heterosis (Ht)-heterobeltiosis (Hb) and the potential of
populations as a HG were analysed. According to the results, non-additive gene effects were predominated and
narrow sense heritability was low for all examined features, significant combining ability effects were
determined for some parents and hybrids. While DH18, DH20 and Harmankaya-99 were good combiners,
“DH16×Altay-2000”, “DH16×Kate A-1” and “DH21×Kate A-1” were promising hybrids. The yield, Ht and
SCA were higher in inter-group hybrids than intra-group hybrids in HG. Although molecular markers are
considered more reliable to create HG, only marker selection will not adequate to improve the trait in question
because of complex genetic structure and environmental influence. Therefore, HG based on yield-specific SCA
can be utilized as a reliable parameter in breeding studies. 

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Article Details

USING LINE × TESTER METHOD AND HETEROTIC GROUPING TO SELECT HIGH YIELDING GENOTYPES OF BREAD WHEAT (Triticum aestivum L.)

Authors: İmren KUTLU | Zeynep SIREL

Publisher: Society of Fields Crop Science

Journal: Turkish Journal Of Field Crops 2019 Vol.24 Issue 2, pp.185-194

Document Type: Article

Publication Date: 12/2019

Document Language: English

Document ID (Org No.): 2000636087

Frequency: Bi-Annual

pISSN: 1301-1111

DOI: https://doi.org/10.17557/tjfc.643546

Issues

Authors:

İmren KUTLU | Zeynep SIREL

Publisher:

Society of Fields Crop Science

Journal:

Turkish Journal Of Field Crops 2019 Vol.24 Issue 2, pp.185-194

Document Type:

Article

Publication Date:

12/2019

Document Language:

English

Document ID (Org No.):

2000636087

Frequency:

Bi-Annual

pISSN:

1301-1111

DOI:

https://doi.org/10.17557/tjfc.643546